Glyphosate (trade name Roundup) is an effective foliar spray when applied as a 1% solution to multiflora rose plants that are flowering or in bud. ... Multiflora rose does not fit this description adequately and is controlled most effectively when treating during the growing season.

What herbicide kills multiflora rose?

The herbicide triclopyr (Pathfinder II) can be applied to multiflora rose stems to kill the top growth, either after cutting, or to intact plants as a basal bark application.

How do I get rid of Rosa multiflora?

Application of systemic herbicides (e.g., glyphosate) to freshly cut stumps or to regrowth may be the most effective methods, especially if conducted late in the growing season. Plant growth regulators have been used to control the spread of multiflora rose by preventing fruit set.